Although historical records do not state the name of the first person to invent glasses up. But the evidence appears to believe that Salman Winona R. optical physicist who grew up in Florence, Italy seems to be receiving this honor.
It is said that around the year 1280, while Armani's 35 years old, his eyesight had been affected during the trial, the refraction of light. After this event, Armani has grown into practice by trying to make glass lenses to correct their vision in the end he can bend thick artificial lens which gives a clearer picture successfully.
Since 1300, when the Venetian craftsman in the center of the glass industry in Europe is preoccupied with rain. 'Disc glass for the eyes' lenses of the glasses to the market in the first convex lens for presbyopia is the only technology glasses do not spread into England circa 1326 glasses are common only among scholars and nobles. It will not rain on the lens specifically for each client. As usual, those who want to experiment eyewear lenses are available in many sizes. Then choose one that allows you to see the most obvious. Doctors in those days there was no guarantee that I made glasses. The method for measuring by sight, try to read the numbers, it has not happened.
By the mid-14th century Italian glass disc, commonly referred to as the 'Matthews Lane' because of the shape of the lens, like seed pods of Iain Matthews. (Legumes), which rounded and curved surface on both sides. This popularity makes more than 200 years later, the glasses are generally known in name. Play Promethean mirror 'the Matthews Lane, this is the origin of the word' lenses' we used to call in the present.
Concave glasses to correct nearsightedness make up for the first time in the 15th century the use of glasses to help them read the most. Concave glasses that allow a remote, it was clear.
Seen as inferior value to the pursuit of wisdom and hence do not need a concave lens glasses for nearsightedness so rare and very expensive. When the printer was invented, making the book an enormous amount of publications produced widespread. Glasses began to change from a luxury to a necessity in life.
The first glasses which contain arms made by the London ophthalmologist. Edward Antonio Letterman since 1727, when French newspapers have praised the features of this new invention. Allows the user to breathe and move comfortably without fear that the glasses will move from nose Moray.
Today we often think of glasses that are lightweight. But the big flaw of the glasses is heavy. Frame weight of the past, which is made of bone, ivory or tortoiseshell be combined with lenses made of glass. The glasses can cause headaches. Lightweight metal frame or glass lenses, it also requires a lot of weight anyway. When the plastic lens was invented in this century. We can wear all day without being removed periodically to keep ears and nose break from the weight of the glasses.
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